| // OBSOLETE /* Intel 386 native support. |
| // OBSOLETE Copyright 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, |
| // OBSOLETE 2000, 2001 Free Software Foundation, Inc. |
| // OBSOLETE |
| // OBSOLETE This file is part of GDB. |
| // OBSOLETE |
| // OBSOLETE This program is free software; you can redistribute it and/or modify |
| // OBSOLETE it under the terms of the GNU General Public License as published by |
| // OBSOLETE the Free Software Foundation; either version 2 of the License, or |
| // OBSOLETE (at your option) any later version. |
| // OBSOLETE |
| // OBSOLETE This program is distributed in the hope that it will be useful, |
| // OBSOLETE but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // OBSOLETE MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // OBSOLETE GNU General Public License for more details. |
| // OBSOLETE |
| // OBSOLETE You should have received a copy of the GNU General Public License |
| // OBSOLETE along with this program; if not, write to the Free Software |
| // OBSOLETE Foundation, Inc., 59 Temple Place - Suite 330, |
| // OBSOLETE Boston, MA 02111-1307, USA. */ |
| // OBSOLETE |
| // OBSOLETE #include "defs.h" |
| // OBSOLETE #include "frame.h" |
| // OBSOLETE #include "inferior.h" |
| // OBSOLETE #include "language.h" |
| // OBSOLETE #include "gdbcore.h" |
| // OBSOLETE #include "regcache.h" |
| // OBSOLETE |
| // OBSOLETE #ifdef USG |
| // OBSOLETE #include <sys/types.h> |
| // OBSOLETE #endif |
| // OBSOLETE |
| // OBSOLETE #include <sys/param.h> |
| // OBSOLETE #include <sys/dir.h> |
| // OBSOLETE #include <signal.h> |
| // OBSOLETE #include <sys/user.h> |
| // OBSOLETE #include <sys/ioctl.h> |
| // OBSOLETE #include <fcntl.h> |
| // OBSOLETE |
| // OBSOLETE #include <sys/file.h> |
| // OBSOLETE #include "gdb_stat.h" |
| // OBSOLETE |
| // OBSOLETE #include <stddef.h> |
| // OBSOLETE #include <sys/ptrace.h> |
| // OBSOLETE |
| // OBSOLETE /* Does AIX define this in <errno.h>? */ |
| // OBSOLETE extern int errno; |
| // OBSOLETE |
| // OBSOLETE #ifdef HAVE_SYS_REG_H |
| // OBSOLETE #include <sys/reg.h> |
| // OBSOLETE #endif |
| // OBSOLETE |
| // OBSOLETE #include "floatformat.h" |
| // OBSOLETE |
| // OBSOLETE #include "target.h" |
| // OBSOLETE |
| // OBSOLETE static void fetch_core_registers (char *, unsigned, int, CORE_ADDR); |
| // OBSOLETE |
| // OBSOLETE |
| // OBSOLETE /* this table must line up with REGISTER_NAMES in tm-i386v.h */ |
| // OBSOLETE /* symbols like 'EAX' come from <sys/reg.h> */ |
| // OBSOLETE static int regmap[] = |
| // OBSOLETE { |
| // OBSOLETE EAX, ECX, EDX, EBX, |
| // OBSOLETE USP, EBP, ESI, EDI, |
| // OBSOLETE EIP, EFL, CS, SS, |
| // OBSOLETE DS, ES, FS, GS, |
| // OBSOLETE }; |
| // OBSOLETE |
| // OBSOLETE /* blockend is the value of u.u_ar0, and points to the |
| // OBSOLETE * place where GS is stored |
| // OBSOLETE */ |
| // OBSOLETE |
| // OBSOLETE int |
| // OBSOLETE i386_register_u_addr (int blockend, int regnum) |
| // OBSOLETE { |
| // OBSOLETE #if 0 |
| // OBSOLETE /* this will be needed if fp registers are reinstated */ |
| // OBSOLETE /* for now, you can look at them with 'info float' |
| // OBSOLETE * sys5 wont let you change them with ptrace anyway |
| // OBSOLETE */ |
| // OBSOLETE if (regnum >= FP0_REGNUM && regnum <= FP7_REGNUM) |
| // OBSOLETE { |
| // OBSOLETE int ubase, fpstate; |
| // OBSOLETE struct user u; |
| // OBSOLETE ubase = blockend + 4 * (SS + 1) - KSTKSZ; |
| // OBSOLETE fpstate = ubase + ((char *) &u.u_fpstate - (char *) &u); |
| // OBSOLETE return (fpstate + 0x1c + 10 * (regnum - FP0_REGNUM)); |
| // OBSOLETE } |
| // OBSOLETE else |
| // OBSOLETE #endif |
| // OBSOLETE return (blockend + 4 * regmap[regnum]); |
| // OBSOLETE |
| // OBSOLETE } |
| // OBSOLETE |
| // OBSOLETE /* The code below only work on the aix ps/2 (i386-ibm-aix) - |
| // OBSOLETE * mtranle@paris - Sat Apr 11 10:34:12 1992 |
| // OBSOLETE */ |
| // OBSOLETE |
| // OBSOLETE struct env387 |
| // OBSOLETE { |
| // OBSOLETE unsigned short control; |
| // OBSOLETE unsigned short r0; |
| // OBSOLETE unsigned short status; |
| // OBSOLETE unsigned short r1; |
| // OBSOLETE unsigned short tag; |
| // OBSOLETE unsigned short r2; |
| // OBSOLETE unsigned long eip; |
| // OBSOLETE unsigned short code_seg; |
| // OBSOLETE unsigned short opcode; |
| // OBSOLETE unsigned long operand; |
| // OBSOLETE unsigned short operand_seg; |
| // OBSOLETE unsigned short r3; |
| // OBSOLETE unsigned char regs[8][10]; |
| // OBSOLETE }; |
| // OBSOLETE |
| // OBSOLETE static |
| // OBSOLETE print_387_status (unsigned short status, struct env387 *ep) |
| // OBSOLETE { |
| // OBSOLETE int i; |
| // OBSOLETE int bothstatus; |
| // OBSOLETE int top; |
| // OBSOLETE int fpreg; |
| // OBSOLETE unsigned char *p; |
| // OBSOLETE |
| // OBSOLETE bothstatus = ((status != 0) && (ep->status != 0)); |
| // OBSOLETE if (status != 0) |
| // OBSOLETE { |
| // OBSOLETE if (bothstatus) |
| // OBSOLETE printf_unfiltered ("u: "); |
| // OBSOLETE print_387_status_word (status); |
| // OBSOLETE } |
| // OBSOLETE |
| // OBSOLETE if (ep->status != 0) |
| // OBSOLETE { |
| // OBSOLETE if (bothstatus) |
| // OBSOLETE printf_unfiltered ("e: "); |
| // OBSOLETE print_387_status_word (ep->status); |
| // OBSOLETE } |
| // OBSOLETE |
| // OBSOLETE print_387_control_word (ep->control); |
| // OBSOLETE printf_unfiltered ("last exception: "); |
| // OBSOLETE printf_unfiltered ("opcode %s; ", local_hex_string (ep->opcode)); |
| // OBSOLETE printf_unfiltered ("pc %s:", local_hex_string (ep->code_seg)); |
| // OBSOLETE printf_unfiltered ("%s; ", local_hex_string (ep->eip)); |
| // OBSOLETE printf_unfiltered ("operand %s", local_hex_string (ep->operand_seg)); |
| // OBSOLETE printf_unfiltered (":%s\n", local_hex_string (ep->operand)); |
| // OBSOLETE |
| // OBSOLETE top = ((ep->status >> 11) & 7); |
| // OBSOLETE |
| // OBSOLETE printf_unfiltered ("regno tag msb lsb value\n"); |
| // OBSOLETE for (fpreg = 7; fpreg >= 0; fpreg--) |
| // OBSOLETE { |
| // OBSOLETE double val; |
| // OBSOLETE |
| // OBSOLETE printf_unfiltered ("%s %d: ", fpreg == top ? "=>" : " ", fpreg); |
| // OBSOLETE |
| // OBSOLETE switch ((ep->tag >> ((7 - fpreg) * 2)) & 3) |
| // OBSOLETE { |
| // OBSOLETE case 0: |
| // OBSOLETE printf_unfiltered ("valid "); |
| // OBSOLETE break; |
| // OBSOLETE case 1: |
| // OBSOLETE printf_unfiltered ("zero "); |
| // OBSOLETE break; |
| // OBSOLETE case 2: |
| // OBSOLETE printf_unfiltered ("trap "); |
| // OBSOLETE break; |
| // OBSOLETE case 3: |
| // OBSOLETE printf_unfiltered ("empty "); |
| // OBSOLETE break; |
| // OBSOLETE } |
| // OBSOLETE for (i = 9; i >= 0; i--) |
| // OBSOLETE printf_unfiltered ("%02x", ep->regs[fpreg][i]); |
| // OBSOLETE |
| // OBSOLETE i387_to_double ((char *) ep->regs[fpreg], (char *) &val); |
| // OBSOLETE printf_unfiltered (" %#g\n", val); |
| // OBSOLETE } |
| // OBSOLETE } |
| // OBSOLETE |
| // OBSOLETE static struct env387 core_env387; |
| // OBSOLETE |
| // OBSOLETE void |
| // OBSOLETE i386_float_info (void) |
| // OBSOLETE { |
| // OBSOLETE struct env387 fps; |
| // OBSOLETE int fpsaved = 0; |
| // OBSOLETE /* We need to reverse the order of the registers. Apparently AIX stores |
| // OBSOLETE the highest-numbered ones first. */ |
| // OBSOLETE struct env387 fps_fixed; |
| // OBSOLETE int i; |
| // OBSOLETE |
| // OBSOLETE if (! ptid_equal (inferior_ptid, null_ptid)) |
| // OBSOLETE { |
| // OBSOLETE char buf[10]; |
| // OBSOLETE unsigned short status; |
| // OBSOLETE |
| // OBSOLETE ptrace (PT_READ_FPR, PIDGET (inferior_ptid), buf, |
| // OBSOLETE offsetof (struct env387, status)); |
| // OBSOLETE memcpy (&status, buf, sizeof (status)); |
| // OBSOLETE fpsaved = status; |
| // OBSOLETE } |
| // OBSOLETE else |
| // OBSOLETE { |
| // OBSOLETE if ((fpsaved = core_env387.status) != 0) |
| // OBSOLETE memcpy (&fps, &core_env387, sizeof (fps)); |
| // OBSOLETE } |
| // OBSOLETE |
| // OBSOLETE if (fpsaved == 0) |
| // OBSOLETE { |
| // OBSOLETE printf_unfiltered ("no floating point status saved\n"); |
| // OBSOLETE return; |
| // OBSOLETE } |
| // OBSOLETE |
| // OBSOLETE if (! ptid_equal (inferior_ptid, null_ptid)) |
| // OBSOLETE { |
| // OBSOLETE int offset; |
| // OBSOLETE for (offset = 0; offset < sizeof (fps); offset += 10) |
| // OBSOLETE { |
| // OBSOLETE char buf[10]; |
| // OBSOLETE ptrace (PT_READ_FPR, PIDGET (inferior_ptid), buf, offset); |
| // OBSOLETE memcpy ((char *) &fps.control + offset, buf, |
| // OBSOLETE MIN (10, sizeof (fps) - offset)); |
| // OBSOLETE } |
| // OBSOLETE } |
| // OBSOLETE fps_fixed = fps; |
| // OBSOLETE for (i = 0; i < 8; ++i) |
| // OBSOLETE memcpy (fps_fixed.regs[i], fps.regs[7 - i], 10); |
| // OBSOLETE print_387_status (0, &fps_fixed); |
| // OBSOLETE } |
| // OBSOLETE |
| // OBSOLETE /* Fetch one register. */ |
| // OBSOLETE static void |
| // OBSOLETE fetch_register (int regno) |
| // OBSOLETE { |
| // OBSOLETE char buf[MAX_REGISTER_RAW_SIZE]; |
| // OBSOLETE if (regno < FP0_REGNUM) |
| // OBSOLETE *(int *) buf = ptrace (PT_READ_GPR, PIDGET (inferior_ptid), |
| // OBSOLETE PT_REG (regmap[regno]), 0, 0); |
| // OBSOLETE else |
| // OBSOLETE ptrace (PT_READ_FPR, PIDGET (inferior_ptid), buf, |
| // OBSOLETE (regno - FP0_REGNUM) * 10 + offsetof (struct env387, regs)); |
| // OBSOLETE supply_register (regno, buf); |
| // OBSOLETE } |
| // OBSOLETE |
| // OBSOLETE void |
| // OBSOLETE fetch_inferior_registers (int regno) |
| // OBSOLETE { |
| // OBSOLETE if (regno < 0) |
| // OBSOLETE for (regno = 0; regno < NUM_REGS; regno++) |
| // OBSOLETE fetch_register (regno); |
| // OBSOLETE else |
| // OBSOLETE fetch_register (regno); |
| // OBSOLETE } |
| // OBSOLETE |
| // OBSOLETE /* store one register */ |
| // OBSOLETE static void |
| // OBSOLETE store_register (int regno) |
| // OBSOLETE { |
| // OBSOLETE char buf[80]; |
| // OBSOLETE errno = 0; |
| // OBSOLETE if (regno < FP0_REGNUM) |
| // OBSOLETE ptrace (PT_WRITE_GPR, PIDGET (inferior_ptid), PT_REG (regmap[regno]), |
| // OBSOLETE *(int *) ®isters[REGISTER_BYTE (regno)], 0); |
| // OBSOLETE else |
| // OBSOLETE ptrace (PT_WRITE_FPR, PIDGET (inferior_ptid), |
| // OBSOLETE ®isters[REGISTER_BYTE (regno)], |
| // OBSOLETE (regno - FP0_REGNUM) * 10 + offsetof (struct env387, regs)); |
| // OBSOLETE |
| // OBSOLETE if (errno != 0) |
| // OBSOLETE { |
| // OBSOLETE sprintf (buf, "writing register number %d", regno); |
| // OBSOLETE perror_with_name (buf); |
| // OBSOLETE } |
| // OBSOLETE } |
| // OBSOLETE |
| // OBSOLETE /* Store our register values back into the inferior. |
| // OBSOLETE If REGNO is -1, do this for all registers. |
| // OBSOLETE Otherwise, REGNO specifies which register (so we can save time). */ |
| // OBSOLETE void |
| // OBSOLETE store_inferior_registers (int regno) |
| // OBSOLETE { |
| // OBSOLETE if (regno < 0) |
| // OBSOLETE for (regno = 0; regno < NUM_REGS; regno++) |
| // OBSOLETE store_register (regno); |
| // OBSOLETE else |
| // OBSOLETE store_register (regno); |
| // OBSOLETE } |
| // OBSOLETE |
| // OBSOLETE #ifndef CD_AX /* defined in sys/i386/coredump.h */ |
| // OBSOLETE #define CD_AX 0 |
| // OBSOLETE #define CD_BX 1 |
| // OBSOLETE #define CD_CX 2 |
| // OBSOLETE #define CD_DX 3 |
| // OBSOLETE #define CD_SI 4 |
| // OBSOLETE #define CD_DI 5 |
| // OBSOLETE #define CD_BP 6 |
| // OBSOLETE #define CD_SP 7 |
| // OBSOLETE #define CD_FL 8 |
| // OBSOLETE #define CD_IP 9 |
| // OBSOLETE #define CD_CS 10 |
| // OBSOLETE #define CD_DS 11 |
| // OBSOLETE #define CD_ES 12 |
| // OBSOLETE #define CD_FS 13 |
| // OBSOLETE #define CD_GS 14 |
| // OBSOLETE #define CD_SS 15 |
| // OBSOLETE #endif |
| // OBSOLETE |
| // OBSOLETE /* |
| // OBSOLETE * The order here in core_regmap[] has to be the same as in |
| // OBSOLETE * regmap[] above. |
| // OBSOLETE */ |
| // OBSOLETE static int core_regmap[] = |
| // OBSOLETE { |
| // OBSOLETE CD_AX, CD_CX, CD_DX, CD_BX, |
| // OBSOLETE CD_SP, CD_BP, CD_SI, CD_DI, |
| // OBSOLETE CD_IP, CD_FL, CD_CS, CD_SS, |
| // OBSOLETE CD_DS, CD_ES, CD_FS, CD_GS, |
| // OBSOLETE }; |
| // OBSOLETE |
| // OBSOLETE /* Provide registers to GDB from a core file. |
| // OBSOLETE |
| // OBSOLETE CORE_REG_SECT points to an array of bytes, which were obtained from |
| // OBSOLETE a core file which BFD thinks might contain register contents. |
| // OBSOLETE CORE_REG_SIZE is its size. |
| // OBSOLETE |
| // OBSOLETE WHICH says which register set corelow suspects this is: |
| // OBSOLETE 0 --- the general-purpose register set |
| // OBSOLETE 2 --- the floating-point register set |
| // OBSOLETE |
| // OBSOLETE REG_ADDR isn't used. */ |
| // OBSOLETE |
| // OBSOLETE static void |
| // OBSOLETE fetch_core_registers (char *core_reg_sect, unsigned core_reg_size, |
| // OBSOLETE int which, CORE_ADDR reg_addr) |
| // OBSOLETE { |
| // OBSOLETE |
| // OBSOLETE if (which == 0) |
| // OBSOLETE { |
| // OBSOLETE /* Integer registers */ |
| // OBSOLETE |
| // OBSOLETE #define cd_regs(n) ((int *)core_reg_sect)[n] |
| // OBSOLETE #define regs(n) *((int *) ®isters[REGISTER_BYTE (n)]) |
| // OBSOLETE |
| // OBSOLETE int i; |
| // OBSOLETE for (i = 0; i < FP0_REGNUM; i++) |
| // OBSOLETE regs (i) = cd_regs (core_regmap[i]); |
| // OBSOLETE } |
| // OBSOLETE else if (which == 2) |
| // OBSOLETE { |
| // OBSOLETE /* Floating point registers */ |
| // OBSOLETE |
| // OBSOLETE if (core_reg_size >= sizeof (core_env387)) |
| // OBSOLETE memcpy (&core_env387, core_reg_sect, core_reg_size); |
| // OBSOLETE else |
| // OBSOLETE fprintf_unfiltered (gdb_stderr, "Couldn't read float regs from core file\n"); |
| // OBSOLETE } |
| // OBSOLETE } |
| // OBSOLETE |
| // OBSOLETE |
| // OBSOLETE /* Register that we are able to handle i386aix core file formats. |
| // OBSOLETE FIXME: is this really bfd_target_unknown_flavour? */ |
| // OBSOLETE |
| // OBSOLETE static struct core_fns i386aix_core_fns = |
| // OBSOLETE { |
| // OBSOLETE bfd_target_unknown_flavour, /* core_flavour */ |
| // OBSOLETE default_check_format, /* check_format */ |
| // OBSOLETE default_core_sniffer, /* core_sniffer */ |
| // OBSOLETE fetch_core_registers, /* core_read_registers */ |
| // OBSOLETE NULL /* next */ |
| // OBSOLETE }; |
| // OBSOLETE |
| // OBSOLETE void |
| // OBSOLETE _initialize_core_i386aix (void) |
| // OBSOLETE { |
| // OBSOLETE add_core_fns (&i386aix_core_fns); |
| // OBSOLETE } |